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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Soil-plant transfer models for metals to improve soil screening value guidelines valid for Sao Paulo, Brazil

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dos Santos-Araujo, Sabrina N. [1] ; Swartjes, Frank A. [2] ; Versluijs, Kees W. [2] ; Moreno, Fabio Netto [3] ; Alleoni, Luis R. F. [4]
Total Authors: 5
[1] Sao Paulo State Univ UNESP FEIS, Ave Brasil 56, BR-15385000 Ilha Solteira, SP - Brazil
[2] Natl Inst Publ Hlth & Environm RIVM, NL-3720 BA Bilthoven - Netherlands
[3] Environm Agcy State Sao Paulo CETESB, BR-05459900 Sao Paulo, SP - Brazil
[4] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, CP 09, BR-13418900 Piracicaba, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Web of Science Citations: 6

In Brazil, there is a lack of combined soil-plant data attempting to explain the influence of specific climate, soil conditions, and crop management on heavy metal uptake and accumulation by plants. As a consequence, soil-plant relationships to be used in risk assessments or for derivation of soil screening values are not available. Our objective in this study was to develop empirical soil-plant models for Cd, Cu, Pb, Ni, and Zn, in order to derive appropriate soil screening values representative of humid tropical regions such as the state of Sao Paulo (SP), Brazil. Soil and plant samples from 25 vegetable species in the production areas of SP were collected. The concentrations of metals found in these soil samples were relatively low. Therefore, data from temperate regions were included in our study. The soil-plant relations derived had a good performance for SP conditions for 8 out of 10 combinations of metal and vegetable species. The bioconcentration factor (BCF) values for Cd, Cu, Ni, Pb, and Zn in lettuce and for Cd, Cu, Pb, and Zn in carrotwere determined under three exposure scenarios at pH5 and 6. The application of soil-plant models and the BCFs proposed in this study can be an important tool to derive national soil quality criteria. However, this methodological approach includes data assessed under different climatic conditions and soil types and need to be carefully considered. (AU)

FAPESP's process: 12/03682-2 - Soil-plant transfer of heavy metals and assessment of risk to human health in crops in the state of São Paulo
Grantee:Sabrina Novaes dos Santos-Araujo
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 13/08579-8 - Soil-to-plant transfer of heavy metals and an assessment of human health risks in vegetable-producing areas of São Paulo state
Grantee:Sabrina Novaes dos Santos-Araujo
Support Opportunities: Scholarships abroad - Research Internship - Doctorate